Home / 28,760.47-39,676.64-16,818.54

Finding the Fourth Proportional to 28,760.47, 39,676.64 and 16,818.54

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Solution

The fourth proportional to 28,760.47, 39,676.64 and 16,818.54 is: 23,202.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.47 : 39,676.64 = 16,818.54 : x
  2. Step 2: Convert to fraction form
    28,760.47/39,676.64 = 16,818.54/x
  3. Step 3: Cross multiply
    28,760.47x = 39,676.64 × 16,818.54
  4. Step 4: Simplify right side
    28,760.47x = 667,302,924.03
  5. Step 5: Solve for x
    x = 667,302,924.03/28,760.47
  6. Step 6: Final answer
    x = 23,202.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.